APA-Zitierstil (7. Ausg.)

Guffey, M. E., & Loewy, D. (2010). Essentials of business communication (8th ed.). South-Western/Cengage Learning.

Chicago-Zitierstil (17. Ausg.)

Guffey, Mary Ellen, und Dana Loewy. Essentials of Business Communication. 8th ed. Mason, Ohio: South-Western/Cengage Learning, 2010.

MLA-Zitierstil (9. Ausg.)

Guffey, Mary Ellen, und Dana Loewy. Essentials of Business Communication. 8th ed. South-Western/Cengage Learning, 2010.